Internal combustion engine



APPLICATION FILED APJLZB. 191s.

Patent-0d July 29, 19M.

3 SHEETSSHEET I INVENTOR.

C. D. HIGBEE.-

INTERNAL-COMBUSTION ENGINE.

APPLICATION FILED APFLZG. X918.

1 ,3 1 l ,603 Patented 51.1 29, 1919.

3 SHEETSHEET 2.

gg/A I W Y I ATTORNEY.

C. D. HlGBEi INTERNAL COMBUSTION ENGINE.

APPLICATION HLED APR26. 1918.

Patented July 29, 1919.

m1 mm,

3 SHEETS-SHEET 3.

IJVVENTOR.

ATTORNEY.

' view of saving time, in taking down of minnnum weight and provide,

Dallas, inthe county CHARLIE D. HIGBEE, OF

DALLAS, TEXAS, ASSIGNOR 0F ONE-HALF TO E. W..D'ICKIE, OF

DALLAS, TEXAS.

INTERNAL-COMBUSTION ENGINE.

To all whom it m ((y concern.-

Be itv known that I, (human .1). Hronnn, a citizen of the United States,-residing at of Dallas and State of Texas, have invented certain new and useful Improvements in lnternal-Combustion Engines, of which the following is a speci- .fication.

-.This invention relates to new and useful improvements in internal combustion engines.

The ideainvolved is to produce an engine or motor of this type in which simplicity and accessibilitywill be the dominating features, and further to construct an engine with .a

the engine whereby the cost of making repairs is greatly reduced. It is also contemplated making certain parts. removable and detachable and other parts interchangeable so that duplicates may be substituted when it is desired to work on the original parts. One of the purposes is also to produce motor ample antifriction bearings for the crank shaft and cam shaft.

In carrying out the structure is produced marily of a lower section or"c an upper section or The block and the crank case are united by invention an engine and composed pri- 'ank use and verticalfastenings extended entirely through both sections. It is proposed to form the block and crank case of some light weight metal and to thread into the block cylinder sleeves made of the proper material. These sleeves may be niade of steel while the block 18 made of aluminum and when worn or scored the sleeves may be removed and either replaced or rebored. A crank shaft is mounted in roller bearings and set into the crank ease and is given an additional number of bearing points whereby strength is added.

The intake manifold is cast in the block which gives the advantage of superheating the gas and also does away with some of the -fastenings usually required. The entire structure is very simple and am eessible.

The invention will be more readily understood from a reading of the following specifieation and by reference to the accompanying drawings, in which an example of the invention is illustrated, and wherein Figure 1 is a view of a motor constructed Specification of Letters Patent.

block mounted thereon.-

Patented July 29, 1919.

Application filed April 26; 1918. Serial No. 230,958. I

in accordance with this invention and be- 'ing' Illustrated partly in section and partly in elevation,

Fig. 2 is a transverse vertical sectional view on theline 2 2 of Fig. 1,

Fig. 3 is a transverse vertical sectional view on the line 33 of Fig. 1,

Fig. 4 is a horizontal cross sectional view taken on the line H of Fig. l,

, Figsft'), 6 and 7 are details of the bearing blocks, and I i Y Fi 8 is a sectional detail of the cam shaft and its bearings. i

In the drawings the numeral 1 designates av lower section or crank case and 2 the upper section or cylinder block. I prefer to cast the crank case and cylinder block of a light metal such suitable material. illustrated a four cylinder motor, but it is to be understood that this number is nota limi as aluminum orsome other In the drawings I have tation. -The crank case 1s provided on its top with In a four cylinder motor there would be but comparatively few of these bolts and by removing the same the block could be innuediately lifted from the crank case. The crank caseis provided with four supporting lugs 7 which are adapted to engage with the frame onwhich the engine is mounted. The block also has lugs 8 resting on the. lugs 7 and bolted theretoif desired.

The block is cast with cylinderv jackets 9 which are surrounded in the block by water spaces or chambers 10 also extending over the heads of the jackets. Sleeves 11 providedin said chambers receive the bolts 6 so that the water cannot escape through the openings for said bolts. Within the chambers 1O ducts or conduits 12 are formed so as to communicate with anexhaust manifold 13 fastened on the outside of the block and tern'iinating at collars l-t connecting the top 16. From each collar 16 a duct 17 leads and connects with an internal manifold 18 formed within the block and being supplied through a common inlet 19 with which the carbureter (not shown) is connected. The

circulation and coolin of the Water is'carried out in any suitablla way as is now common in this art. It will be seen that the water circulating around the jackets 9, ducts 12 and 17 and collars 14, 15 and 16 will efficiently cool these parts and prevent overheating and at the same time the intake manifold 18 will be heated and protected. The cylinder jackets 9 extend to the bot- 15 tom of the block and are internally threaded I to receive cylinder sleeves or liners 20 which are screwed in from the bottom of the block and may be removed if desired. These sleeves have heads, as will be seen, and each 20 head is provided with openings registering with the collars 14, 15 and 16. In each collar 15 a cage 21 is mounted and each cage receives the usual spark plug 22. The collars 14 and 16 each receive a cage comprising a valve sleeve 23 and a lock-nut 24, the sleeves being keyed in the collar and the nuts screwing into the collar holding the sleeve therein. Each sleeve being keyed against rotation is in communication with one of the ducts and carries a valve 25 opening into the cylinder 20 and seating against the lower end of the sleeve. A coiled spring 26 is confined on the valve stem above the sleeve. This type of construction is known as valve-in-head motor.

It is pointed out that should either the intake or the exhaust valve need grinding or repairing the cage can be easily removed and another valve cage substituted therefor while the first one is being worked on thus enablin time. he valves are operated by rockerarms 27 centrally pivoted on posts 28. Each rocker-arm has connection with a rod 29 by 5 means of a turn buckle 30. The rods 29 extend down through the block so as to engage lifters 31, which are mounted on cams 32 carried on a cam shaft 33. The lifters and cam shaft are mounted in the crank case so that when the block is removed from the 'case access may be had to the parts.

The cam shaft 33 is mounted in a roller bearing 34 at one end of the crank case and is supported in a removable roller bearing 35 at the other end and after the bearing has been removed the opening left is sufliciently large for the bearing to be re moved therethrough. The cam' 'l shaft being mounted in roller bearings will operate more tw'easily and with less friction. Under the ortion of the block between each' cylinder Jacket the crank case is formed with a hearing arch 36. A split roller bearing 37 is seated in each of these arches and also at to each end of the crank case so that the top of the use of the motor in the meansaid bearings come flush with the top of the crank case, and when the block is removed the bearings are not disturbed. These bearing blocks support roller bearings 38 formed in the usual manner and these roller bearings support a crank shaft 39 which by reason of the many points of support can be made very stout. The bearing'blocks are not only split but are tongue and grooved together so as to provide overlapping supporting portions for the roller bearings, as is clearly shown in Figs. 5, 6 and 7. It will be seen that by removing the upper halves of the bearing blocks the crank shaft and roller bearings can be easily removed. Connecting rods 40 have bearing blocks 41 substantially the same in construction as the blocks 37 and carry roller bearings connected with the crank shaft. The connecting rods are hinged at their upper ends on wrist pins 42 mounted in piston heads 43 working in the cylinders 20.

It will be seen that the different bearings and parts must be oiled and for this purpose I mount an oil pump 44 on the crank case so as to be suitably driven. The oil is led from a suitable point at the bottom of the crank case through a pipe 45 to the oil pump. In the crank case a screen 46 is mounted and the oil is taken from below this. screen. It will be seen that the crank case is constructed so that the cam shaft will-be supplied with oil and other partslubricated. The oil is pumped into a pipe 47 which leads to the usual gage 48 from which a pipe 49 leads back and along one side of the block. For each bearing block 37 a branch pipe 50 leads from the pipe 49' and communicates with a duct 51, extending transversely through the block as shown in Fig. 4 and also in Figs. 2 and 3 to a point over the center of each block 37 and thence down to a port 52 of said block 37 with which it registers. The crank shaft has a by-pass 53 as indicated in Fig. 1, establishing communication between each hearing block 37 and one of the bearing blocks 41 'of the connecting rods. Each connecting rod has a byass 54 through which the oil is taken up to the wrist pin 42 which is hollow and open at each end so as to deliverthc oil to-thc walls of the cylinder.

This system of lubrication is well understood in this art.

lVhat I claim is,

1. The combination in an internal combustion engine of a crank case, a cast cylinder block, cylinder sleeves engaging in the block and removable therefrom, crankshaft bearings mounted in the crank case, a crankshaft mounted in said bearings, valve cages mounted in the head of the block and communicating with the interior of the cylinder sleeves, valves carried in said cages, means for operating the valves, and spark plug cages mounted in the head of the block and therefrom, a crankshaft mounted in said connnunieeting With the interior of the cylroller bearing blocks, the crank case being inder sleeves. open under the bearing supports between 2. The combination in aninternal combuscylinders and acting as an oil reservoir, and

v 5 tion engine of a best cylinder block, a crank e camshaft mounted in the 011 reservoir of 15 case supporting the cylinder block and hzwthe crank ease'ancl removable longitudinally ing bearing supports located between each theeefrom. two cylinders of the block and. at each end in testimony whereof l. efiix my signature. of the crank ease roller bearing blocks 10 mounted in said supports and removable CHARLIE D. HIGBEE. 

